Electric heater.



j No. 771,424.

0. M PISK ELECTRIC HEATER. I APPLICATION FILED 11mm, 1904.

N0 MODEL.

. Inventor.

Httomegs PATENTED OCT. 4, 1904. V

lslnrrsn STATES Patented October 4, 1904,

PATENT Orrrcs.

CASSEUS M. FlSK, @F NAPOLEON, OHlO.

ersornlc HEATER.

SPEJIIFIGQEIDN forming part of Letters Patent No. 171,424, dated October 4, 1904.

Application filed March 5, 1904.

To mil whom.- i!) may, corwcrn:

Bcitknown that lljissms M. FISH, acitizen of hll0 Ulllh(l States, residing at Napoleon, in the county of Henry and State of Ohio, have invented a new and useful Electric rleater, of which the following is a specification. V

This invention relates to electric heaters of that general class employed for heating beds and for like purposes.

The principal objectof the invention is to provide an electric heater in which a box or container is provided with suitable means for supporting an electric lamp by clamping the socket of the lamp and then holding the bulb in a central position, so as to prevent contact with the sides of the container, provision being made for placing the lamp-socket key in such position as to permit the convenient turning on and oil of the current.

A further object of the invention is to provide an electric heater in which thecasing is inthe form of a perforated box having one side sli 'tly concavcd in order that it may conform to the body when hot applications are desired.

A still further object of the invention is to provide a device or this character in which provision is made 1 r lice-ping the casing cool at the point where tl amp-socket is clamped tion, and thus i'rcn'i overheating.

v, ith these and other objects in view, as will more fully hereinafter appear, the invention consists in the novel construction and 'rangcinentot parts hereinafter described, d the accompanying drawings, and p. ticularly-pointcd out in the appended claims, it being understood that various c nges in the form, proportions, size, and details of the structure may be made without departing from the spirit or sacrificing any of the advantages of the invention.

In the accompanying drawings, Figure l is a perspective view of an electric heater constructed in accordance with the invention. Fig. 2 a longitudinal sectional elevation of the same. Fig. 3 is a. transverse section of that portion of the casing which forms the support for the lamp-socket.

Similar characters of reference are employed prevent injury to the Serial No. 196,694. (No model.)

todndicatecorresponding parts throughout the several figures of the drawings.

The device forming the subject of the present invention is an electric heater of that general class used-for the heating of beds or to take the place of hot-watcr bags and the like,-

an incandescent lamp being employed as the heating agent.

The casing l is dividcd into two sections 2 3, that are hinged together at one end in order to permit the opening of the casing and the removal of the lamp when necessary. One wall of the casing, as 4:, is concavcd, as illustrated in Fig. 3, in order that it may conform to the body when used in place of a hot-water bag or similar heating device. At one end of each section of the casing is a semicircular neck portion 5, and when these are brought together they form a tube for encircling the lamp-socket 6. One of the semicircular extensions is provided with a curved sprin -strip 7, rigidly secured to one end and provided at its opposite end with an eye adapted to receive a projecting pin or similar fastening 8, carried by the member to which the springissccured. The spring is suflicicntly elastic to permit the ready opening of the casing when the spring is detached from the pin 8, and a damaged lamp may thus be r iadily replaced. This lampclamping tube serves to support the lamp in such position as to prevent the bulb coming into contact with the walls of the casing, so that it is unnecessary to employ packing or similar material to prevent breaking of the globe, and the openings or perforations of the casing will permit the free escape of the heated air.

in order to prevent the longitudinal displacement of the lamp-socket, each of the semicircular extensions is provided with a notch or recess 10, through which passes the lamp-socket key of the lamp, thus holding the lamp .r'rom movement into or out r the casing and at the same time placing the key in convenient position for the turning onv or off of the current.

The device is preferably placed within an inclosing casing formed of.- tcxtile fabric, as indicated at 11 in Fig. 2, in order to prevent direct contact of the metal with the body; but this in all cases will not be necessary. The

section 3 of the casing is provided with a number 0t openings 12 for the passage of securlng-cords, which may be employed for the purpose of holding the heater to the body orv in any other desired position. The lampsocket is provided with projections c, and to receive these each of the clamping members have an opening 14, serving further to prevent movement of the socket in any direction, and this to some extent will avoid the necessity of employing a socket-key as the means for preventing longitudinal or rotative movement of the lamp.

In order to prevent overheating of the lamp, the end of the casing is provided with an annular row of perforations 13 adjacent to the lamp-socket clamps, and thus permits the free passage of air-currents and tends to keep the socket in a comparatively cool condition.

Having thus described the invention, what is claimed is 1. In an electric heater, a sectional casing, each of said sections being provided With elongated clamping members for engaging the socket of the lamp and preventing contact of the lamp-globe With the Walls of the casing.

2. In an electric heater, a sectional casing, and curved clamping members carried by each section of the casing and serving to engage the socket of an incandescent lamp and hold the same from movement in any direction,

3. In an electric heater, a sectional casing, semicircular clamping members carried by each section and adapted for engagement with a lamp-socket, a spring carried by one clamping member. and arranged to encircle the other, and means for holding the spring in locking position.

t. In an electric heater, a sectional casing including hinged members each provided with a semicircular neck portion for clamping the socket of an incandescent lamp, said semicircular portions being notchedfor the reception of the lamp-socket key.

5. In an electric heater, hinged members forming a casing, semicircular clamping members carried thereby, each clamping member being notched for the passage of the lampsocket key and having openings for the reception of projections on the lamp-socket, there being an annular row of perforations formed in the casing immediately around the clamping members, and a spring carried by one of said members and encircling the other.

In testimony that 1 claim the foregoing as my own I have hereto affixed my signature in the presence of two Witnesses.

CASSXUS M. FISK.

Witnesses:

W. A. HANNA,

Fnos'r F. FIsK. 

